Re: Midnight Commander not compiles on Debian Squeeze

[Egmont Koblinger <egmont gmail com>]

Hi Andrey,

This was introduced by a recent patch created by me that fixes a
segfault (a critical bug in 4.8.14). libc6's version is irrelevant,
glib matters here. I think so far mc required a glib that's not older
than about 7 years if I remember correctly. This change makes it
require glib-2.26 which is 5 years old.

I'm personally absolutely okay with this requirement and wouldn't want
to replace with a more complex, more hackish solution to support old
systems. It's reasonable to expect that you can't update apps after a
while wihtout updating the core system, and 5 years is a very long
time in computer science.

The configure checks should, of course, be updated to explicitly fail
on glib version checking. I forgot to do this, and I'm asking
mainstream developers to do it for me.

Mainstream developers might disagree with me and find it important to
support older systems. In that case I'd leave it for them to fix it.
I'm happy to improve mc and make it a better product, looking towards
the future, and of course making sure it runs on reasonably new
systems. But I have no personal interest in making it run on 5 year
old boxes, sorry. If you're happy with a base system that's 5 years
old, I'm assuming you should be happy with an mc from those days too.

Anyway, thanks for the heads-up, I didn't pay attention to the age of
the library call I'm introducing, and I'd definitely find a workaround
if it was let's say a 2-year old feature. But with 5 years my
recommendation is to bump the required glib version by mc developers,
and for you to upgrade your system or manually "git revert" this
change for the time being (re-introducing the potential segfault for
yourself).

Thanks,
Egmont

On Mon, Oct 19, 2015 at 2:14 PM, Andrey Tataranovich
<tataranovich gmail com> wrote:
> Hello,
>
> While compiling e0c16d739926f194c72459f41124b161849e88a3 from
> master branch I've got following error on Debian Squeeze host:
>
> /bin/bash ../libtool  --tag=CC   --mode=link gcc -std=gnu99
> -fdiagnostics-show-option -Wbad-function-cast -Wcomment
> -Wdeclaration-after-statement -Wfloat-equal -Wformat -Wformat-security
> -Wimplicit -Wignored-qualifiers -Wmissing-braces -Wmissing-declarations
> -Wmissing-field-initializers -Wmissing-parameter-type
> -Wmissing-prototypes -Wnested-externs -Wno-long-long
> -Wno-unreachable-code -Wparentheses -Wpointer-arith -Wpointer-sign
> -Wredundant-decls -Wreturn-type -Wsequence-point -Wshadow
> -Wsign-compare -Wstrict-prototypes -Wswitch -Wswitch-default
> -Wtype-limits -Wundef -Wuninitialized -Wunreachable-code
> -Wunused-function -Wunused-label -Wunused-parameter -Wunused-result
> -Wunused-value -Wunused-variable -Wwrite-strings  -g -O2 -g -Wall -O2
> -o mc main.o libinternal.la ../lib/libmc.la libtool: link: gcc
> -std=gnu99 -fdiagnostics-show-option -Wbad-function-cast -Wcomment
> -Wdeclaration-after-statement -Wfloat-equal -Wformat -Wformat-security
> -Wimplicit -Wignored-qualifiers -Wmissing-braces -Wmissing-declarations
> -Wmissing-field-initializers -Wmissing-parameter-type
> -Wmissing-prototypes -Wnested-externs -Wno-long-long
> -Wno-unreachable-code -Wparentheses -Wpointer-arith -Wpointer-sign
> -Wredundant-decls -Wreturn-type -Wsequence-point -Wshadow
> -Wsign-compare -Wstrict-prototypes -Wswitch -Wswitch-default
> -Wtype-limits -Wundef -Wuninitialized -Wunreachable-code
> -Wunused-function -Wunused-label -Wunused-parameter -Wunused-result
> -Wunused-value -Wunused-variable -Wwrite-strings -g -O2 -g -Wall -O2 -o
> mc main.o  ./.libs/libinternal.a ../lib/.libs/libmc.a -lslang -lgpm
> -lssh2 /usr/lib/libgmodule-2.0.so -lrt /usr/lib/libglib-2.0.so
> -pthread ./.libs/libinternal.a(lt58-regex.o): In function
> `mc_search__g_regex_match_full_safe': /tmp/buildd/mc-4.8.14~git20151019/lib/search/regex.c:268:
> undefined reference to `g_regex_get_compile_flags' collect2: ld
> returned 1 exit status make[4]: *** [mc] Error 1 make[4]: Leaving
> directory `/tmp/buildd/mc-4.8.14~git20151019/src'
>
> Debian Squeeze libc6 version is 2.11.3.
>
> --
> WBR, Andrey Tataranovich
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